Chassis
generic / SAE
C05EC
4WD/AWD Clutch B Performance/Stuck Disengaged
AWD clutch A does not engage when commanded — stuck disengaged.
SystemChassis
Typegeneric / SAE
GroupC0
Range / number5 / EC
Possible causes
- Clutch plates worn or actuator stuck high
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–3000 €
- Estimated time: 2–8 h
- Component: awd clutch b
- MIL / check engine light
- drive cycle required
- limp mode possible
Sources
References
sae:J2012